Mastery CS John Wister Elementary

67 E Bringhurst Street
Philadelphia, PA 19144

www.masterycharter.org

Charter School 513 Students

Elementary School K - 5th

School Overview

Mastery Charter School – John Wister Elementary is a public charter school located in the Germantown neighborhood of Philadelphia. Operating under the Mastery Charter Schools network, the school serves students in grades K–5. It follows the Mastery model, which emphasizes high academic standards, a structured learning environment, and a commitment to closing the opportunity gap for students in underserved communities.

The school focuses heavily on core literacy and mathematics instruction while fostering a culture of high expectations and personal responsibility. As part of the broader Mastery network, John Wister utilizes a data-driven approach to track student progress and tailor instruction to individual needs. Beyond academics, the school aims to cultivate a supportive school community that encourages character development, preparing students for success in middle school and beyond.

513

Total Students

28.0

Full-Time Teachers

18.3

Student/Teacher Ratio

N/A

Free/Reduced Lunch

Student Demographics

Student Demographics Data Table

Student Demographics for Mastery CS John Wister Elementary
Demographic	Student Count
White	2
Hispanic	25
Black	471
Two or More	14
American Indian	1

Black
471 (91.8 %)
Hispanic
25 (4.9 %)
Two or More
14 (2.7 %)
White
2 (0.4 %)
American Indian
1 (0.2 %)

School Location

School Details

Status:	Open
School Level:	Elementary School
School Type:	Regular School
Charter Status:*	Charter School
Virtual Instruction:	Supplemental Virtual
Shared Time Status:	No
District:	Mastery CS John Wister Elementary
Phone:	(215)951-4003
Website:	http://www.masterycharter.org
Grade Range:	K - 5th
Total Students:	513
Full-Time Teachers (FTE):	28.0
Pupil/Teacher Ratio:	18.3
NSLP Participation:¹	No
Qualified Free Lunch:	0
Qualified Reduced Lunch:	0

* Charter Schools: A public charter school is a publicly funded school that operates independently under a legislative contract (or "charter") with a state, school district, or designated authorizing entity. Charters grant these schools greater operational flexibility over curriculum, staffing, and budgeting in exchange for strict accountability to achieve performance standards established in their charter agreement.

¹ National School Lunch Program (NSLP): The National School Lunch Program is a federally assisted meal program operating in public and nonprofit private schools. It provides nutritionally balanced, low-cost or free lunches to eligible children each school day based on household income thresholds or community eligibility options (CEO).

Title I Program Overview: Title I, Part A of the Elementary and Secondary Education Act (ESEA) allocates federal financial assistance to local educational agencies and public schools with high percentages of children from low-income families to help ensure that all children meet challenging state academic standards.

Grades Taught

Kindergarten 81

Grade 1 91

Grade 2 83

Grade 3 95

Grade 4 86

Grade 5 77